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Demantoid With Magnetite

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QRI1156981

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Description
Locality: 
Mount Rocciavrè, Chisone Valley, Torino Province, Piedmont, Italy
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.7 × 5.9 × 4.1 cm
Largest Crystal: 
0.20cm
Weight: 
250.00gr
Description

A rich, sizeable specimen of apple green andradite var. demantoid on ophiolite matrix, from an unusual Italian locality.

Demandoid lumps, displaying small faces, are scattered across the entire specimen along with a number of millimeter sized, jet black magnetite crystals. 

A noteworthy Alpine rarity from this area, now a national park. Over 30 years old material!

Mineral Data
What's on the rock

Demantoid

Variety Of: 

Andradite

Formula: 
Ca3Fe3+2(SiO4)3
Strunz: 
9.AD.25
Hardness: 
6.5 - 7.0

Magnetite

Formula: 
Fe2+Fe3+2O4
Strunz: 
4.BB.05
Crystal System: 
Isometric
Hardness: 
5.5 - 6.5
Streak: 
Black

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10
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Shipping Information

Postage Area Price
Italy (Pacco Celere 3)
10
Europe/Mediterranean Basin (Tracked; Zone 1)
22
Americas, Asia, Africa (Tracked; Zone 2)
30
Australia & Oceania (Tracked; Zone 3)
40

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